File:Pain Pond (San Salvador Island, Bahamas) 1 (16468018605).jpg
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| Description |
Pain Pond (looking ~N), northeastern San Salvador Island, eastern Bahamas. Several categories of karst (dissolutional features in soluble rocks such as limestone) exist on islands in the Bahamas. Common small-scale karst features include phytokarst and solution tubes. Large-scale karst features include flank margin caves, pit caves, banana holes, lake drains, and blue holes. San Salvador Island has numerous inland ponds and lakes that range in salinity from normal marine to hypersaline to hyposaline to brackish. Many of these lakes have obvious tidal fluctuations, indicating that there is connectivity with the ocean. The nature of the plumbing system between the ocean and the inland lakes is largely unknown. Lakes having tidal fluctuations usually have an obvious lake drain (tidal inlet) through which water enters and exits. Pain Pond is a small lake having a lake drain/conduit on the eastern side, along a “swiss-cheese limestone” rocky shoreline. The water’s salinity is near-normal marine, around 36 ppt. I measured 36 to 37 ppt salinity on 24 March 1999. Easily observed organisms here include Cerithium snails, Arenicola cristata (Atlantic lugworm) egg masses, and Cyprinodon variegatus sheepshead minnows. |
| Date | |
| Source | Pain Pond (San Salvador Island, Bahamas) 1 |
| Author | James St. John |
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This image was originally posted to Flickr by jsj1771 at https://www.flickr.com/photos/47445767@N05/16468018605. It was reviewed on 2 March 2015 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| current | 21:11, 2 March 2015 | | 2,946 × 1,800 (2.02 MB) | Jacopo Werther (talk | contribs) | Transferred from Flickr via Flickr2Commons |
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